I formated my computer and tocuhpad and several other devices are not functioning properly.

I use a USB mouse. It works.

When I try to install or update my touch pad driver it says, that the best drivers are already installed. Then I uninstalled the drivers of Synaptics PS/2 Port TouchPad﻿ and windows (I use O/s Window 7) promted to reboot and I did so. When it was restared, touch pad works. But windows keep installing drivers automatically﻿ for touch pad and gives the message to restart. I can either allow to reboot or ignore the message and continue my work. As long as I ignore the message touch pad works. But whenever I reboot touchpad no longer works.

What is the issue regard this?? can you please help me on? When this is sorted out I'll raise my other troubleshoots.